SEAT Ibiza ST 2011 / 1.2 TSI CBZB rattle sound

[Reissa]

Video link:

https://imgur.com/a/yLbgexz

My SEAT Ibiza ST 2011 (with 1.2 TSI CBZB engine) makes a weird rattle sound that can be heard well from the passenger seat (doesn't sound that loud in video than it is actually). The sound doesn't change if the car is hot or cold. It can't be heard that good from the engine compartment but I'm still pretty sure that it comes from there. It comes from the right side of the car, not really sure where but maybe near the coolant tank? No other symptoms, car works fine.

Sound also doesn't change if clutch is pressed.

 

[thomasfrank]

Have you noticed if the rattle changes with engine revs or when you turn the AC on and off, especially at idle? Also, has the timing chain, auxiliary belt, or any heat shields on that side ever been checked or replaced?

 

[Reissa]

Have you noticed if the rattle changes with engine revs or when you turn the AC on and off, especially at idle? Also, has the timing chain, auxiliary belt, or any heat shields on that side ever been checked or replaced?

No effect with AC. Not sure about RPM, seems to be more quiet but not sure that if engine sound just masks it. Timing chain has been done about year ago (not much kilometers since). Not sure about belt or heath shields but belt seems to be ok